Cranking no start.
What I have done-
Battery Good
Bore wash lubrication
New plugs while I was in there.
Hard reset
Switched around relays
New fuel filter
MAF cleaned
TB cleaned

What I have noticed-
No fuel at rail
No pressure at rail
Last time I changed the fuel filter only a cup of gas leaked out, this time the entire tank of (1/4) needed to be drained out. Strange, have pressure back there and none up front.

Fuel regulator?
Relays?
Vacuum leak?

Just bought a voltmeter to check things out, funny thing is I have never used one before, but I can learn. Don't have an indie or dealer near by. I read threads, must be missing something. Thanks all.

 

Sounds like the Fuel Pump. Your car has one the SC cars have two. You should be getting fuel at rail -- how much pressure at the tank? The fuel will siphon out if you try and change the filer -- it's not really pressurized.

lots of talk about failed pumps lately

 

I can hear my pump running, at least it is making noise. Possibility that it is running and not pumping?

 

Added question. Was thinking about Yeldgot's suggestion. Is as simple as if the pump is working I should have fuel at the rail? Or is there something in between, that would prevent the fuel from getting there? I did change the filter properly and for a brief moment it kinda stumbled like it wanted to fire.

 

If the pump is running you should have fuel.

It's a question of testing the output from the tank forward. If you are getting fuel under pressure from the tank -- something is blocking the fuel from going forward.

Also, when you install a new filter it can take a couple of cycles to fill all the lines.

I have never in my 40 years had a large filter -- like supplied on the Jaguar -- get so dirty as to stop fuel flow. I guess it is possible. If my in-line filter was that dirty I would worry about the fleece filter connected to the pump inside the tank.

 

Thanks so much Yeldogt. What is the proper way to test the output from the tank? Also I agree, the filter was not that bad as clog the system. Can't imagine what is happening, we know the fuel is getting to the filter, however from the filter forward??? Thanks again for your help.

 

Perhaps a long shot, but did u check the inertia swith?
It is supposed to cut the fuel supply, and I still did not find anywhere how it works in detail.
If ok, and not to belittle ur skills, are u sure the fuel filter is installed correctly? Not reverse?

 

Thanks ericjansen. I knew you would have some ideas for me. I did try to reset the inertia switch, I will try again. I am sure the filter is in correctly, and you may question my skills, that is a very good point. I am trying to find a way to prove the pump is pushing fuel before I go in and replace. Like yeldodt proposed, there really should be no interference between the pump and the fuel rail, except for the filter of course. I wish the filter was the problem, easy fix compared to the pump. Any other suggestions are SO welcomed. This is my only car.

 

There seems to be a fuel regulator/dampener near the TB could this be a cause of no fuel pressure at the rails? I continue to hear the pump running so I am wondering what could cause the lack of fuel at the rail...please help.

 

[Last time I changed the fuel filter only a cup of gas leaked out, this time the entire tank of (1/4) needed to be drained out. Strange, have pressure back there and none up front.] quote

There is something wrong here. The fuel tank should not drain when you change the filter. There is a check valve in the pump to prevent that, so I think your pump needs to be replaced.

 

Thanks RJ. I am thinking that now. Thanks for weighing in.

 

Any ideas on a drop in fuel pump, one I don't have to modify. I read others had to make changes for proper fitment.

 

The Denso 9500172 pump and filter I bought from Rockauto was a drop in. The same part is shown for your XJ8

 

Awesome. Thanks RJ

 

I'm a little foggy on that replacement. I may have had to use the original mount or something else, but no wire modification.

 

Resolved. Put in new pump. Unbelievable hard job with out a lift and skinny arms. Thanks all for your help.

 

exact the same situation happened on mine just 3 weeks ago


changed both fuel pumps. part and labor, 800 dollars damage on my pocket.

 

Congrats, great forum, he?